Stud



June 12, 1934.

J. 'r. DUFFY, JR 1,962,711

STUD

Filed July 20, 1933 5. JIzIJeIZZOr:

- object is t Patented June 12, 1934 FlCE STUD

James T. Duffy, J12,

Pioneer Suspender Pennsylvania Wynnewoofl, Pa., assignor to Company, a corporation of Application July 20, 1933, Serial No. 681,246

3 Claims.

This invention relates to improvements in studs having heads or collets of rubber, felt or similar yielding material, especially adapted to form one element of a stocking or garment clasp. The 0 provide an improved construction and an improved arrangement for securing the same to the cooperating elements.

The rubber stud in common use today is mounted by riveting upon a slotted plate, and is secured upon a fabric or leather strip by passing the strip through the slots as shown, for example, in Fig. 4 of patent to Gorton No. 552,470 of Dec. 31, 1895. Many attempts have been made to simplify this arrangement by avoiding the tedious operation of threadin the strip through the slots, see for example Patent No. 1,192,939; Aug. 1, 1916. Nevertheless, the construction shown in the Gorton patent, above referred to, is still the common practice.

In accordance with the present invention the slotted plate requiring the threading of the strip of fabric is obviated. The rubber or other yielding portion of the stud of the post at the top at the bottom, thus forming one element. With this element another element cooperates by clamping the fabric between the cooperating flanges of the two elements.

Referring to the drawing, which illustrates merely by way of example, a suitable embodiment of my invention:-

Fig. 1 is a view in perspective of a clasp having the new stud.

Fig. 2 is a section through the stud element partly separated with the fabric between, this view being on an enlarged scale.

Fig. 3 is a similar view with the parts locked or clamped together.

Fig. 4 is a vertical section of element 5 before the head 6 has been spread or flattened as shown in Figs. 2 and 3.

Fig. 5 is a vertical section of element 9 with flange ll.

45 Similar numerals refer out the several views.

As clearly shown in Fig. 2, the stud comprises a hollow post or socket element 5, having the enlarged head 6 at the top and a flange '7 at :0 the bottom, the said flange being in a plane at right angles with the post. The post 5 is provided with an axial channel 8 extending from the flanged bottom into the head.

A channeled body or collet 12, of yielding ma- 5- terial, such as rubber or felt, having an enlarged to similar parts throughhead 13 at the top and a reduced neck 14 below, is placed over the post and locked in cooperative position therewith by the enlarged head 6 at the top and by the flange 7 formed at the bottom.

A convenient way to assemble the collet 12 with element 5, is to provide the hollow post with a longitudinally elongated head 6, as shown in Fig. 4, and, after placing the collet upon the clamp the collet between the head 6 and flange 7.

The pin element 9 is provided with a flange 11 corresponding substantially with flange 7 and parallel therewith.

The pin portion of element 9, which is preferably hollow or tubular, is adapted to enter the channel 8 until the end engages the top wall of the space 10 within the head 6 with sufsecurely locked togeth In mounting the stud, the pin 9, which has a sharpened end or point, is forced upwardly through a strip 15 of material, such as fabric or 1 engages the underside gether with suflicient for sion and spreading of the head 6 from the shape shown in Fig. 4, to the shape shown in Fig. 2, to clamp the collet between said head 6 and flange 7, and to cause the upsetting and locking of the pin end in the hollow head. By the same operation, the flanges 7 and 11 are forced into close proximity on the opposite sides of the strip 15, thus causing a secure clamping engagement therewith.

What I claim is:

1. A stud comprising a flanged element having a hollow, headed post and a collet of yielding material surro ce to cause the depress5 ating flanged element provided with a pin, said elements adapted to be forced into locking engagement, with a strip of fabric or the like pierced by the pin and clamped between said flanges.

2. A stud comprising two cooperating elements, d with a hollow post, having a hollow head at one end and a flange at the other end, and a collet of yielding material having an enlarged part and a reduced neck portion secured upon said post between the said head and flange,

the other element comprising a pin and a flange,

the pin adapted to pierce a flexible material and to enter the hollow post, said elements being forced together to cause the spreading of the head to lock the collet between head and flange, to lock the pin within the hollow head, and to look the material between 3. A stud with a' collet of comprising a hollow post, flan the two flanges.

yielding material, ged at one end and or the like between the two flanges.

JAMES T. DUFFY, JR. 

